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Carrasco S, Rogan J, Valdivia JA, Sola IR. Anti-alignment driven dynamics in the excited states of molecules under strong fields. Phys Chem Chem Phys 2021; 23:1936-1942. [PMID: 33459314 DOI: 10.1039/d0cp05692h] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We develop two novel models of the H2+ molecule and its isotopes from which we assess quantum-mechanically and semi-classically whether the molecule anti-aligns with the field in the first excited electronic state. The results from both models allow us to predict anti-alignment dynamics even for the HD+ isotope, which possesses a permanent dipole moment. The molecule dissociates at angles perpendicular to the field polarization in both the excited and the ground electronic state, as the population is exchanged through a conical intersection. The quantum mechanical dispersion of the initial state is sufficient to cause full dissociation. We conclude that the stabilization of these molecules in the excited state through bond-hardening under a strong field is highly unlikely.
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Affiliation(s)
- Sebastián Carrasco
- Departamento de Física, Facultad de Ciencias, Universidad de Chile, Casilla 653, 7800024, Santiago, Chile.
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2
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Jia Z, Qin M, Yue Q, Peng Y. Electron localisation control in dissociating with a THz field. Mol Phys 2020. [DOI: 10.1080/00268976.2020.1770351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Zhengmao Jia
- College of Electronic and Information Engineering, Shandong University of Science and Technology, Qingdao, People’s Republic of China
| | - Mingfeng Qin
- College of Electronic and Information Engineering, Shandong University of Science and Technology, Qingdao, People’s Republic of China
| | - Qingyang Yue
- Shandong Provincial Engineering and Technical Center of Light Manipulations & Shandong Provincial Key Laboratory of Optics and Photonic Device, School of Physics and Electronics, Shandong Normal University, Jinan, People’s Republic of China
| | - Yandong Peng
- College of Electronic and Information Engineering, Shandong University of Science and Technology, Qingdao, People’s Republic of China
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Zhang J, He GQ, He F. Optimal laser pulse design for transferring the coherent nuclear wave packet of H +2. Mol Phys 2014. [DOI: 10.1080/00268976.2013.874601] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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4
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Chang BY, Shin S, Palacios A, Martín F, Sola IR. Ultrafast coherent control of giant oscillating molecular dipoles in the presence of static electric fields. J Chem Phys 2013; 139:084306. [DOI: 10.1063/1.4818878] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Chang BY, Shin S, Palacios A, Martín F, Sola IR. Two-Pulse Control of Large-Amplitude Vibrations in H2+. Chemphyschem 2013; 14:1405-12. [DOI: 10.1002/cphc.201201078] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2012] [Revised: 02/18/2013] [Indexed: 11/07/2022]
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Geißler D, Marquetand P, González-Vázquez J, González L, Rozgonyi T, Weinacht T. Control of Nuclear Dynamics with Strong Ultrashort Laser Pulses. J Phys Chem A 2012; 116:11434-40. [DOI: 10.1021/jp306686n] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Dominik Geißler
- Department of Physics, Stony Brook University, Stony Brook,
New York 11794, United States
| | - Philipp Marquetand
- Institute of Theoretical Chemistry, University of Vienna, Währinger Straße
17, 1090 Vienna, Austria
| | | | - Leticia González
- Institute of Theoretical Chemistry, University of Vienna, Währinger Straße
17, 1090 Vienna, Austria
| | - Tamás Rozgonyi
- Institute of Materials and Environmental
Chemistry, Research Centre for Natural Sciences, Hungarian Academy of Sciences, Pusztaszeri út 59-67, Budapest,
HU-1025, Hungary
| | - Thomas Weinacht
- Department of Physics, Stony Brook University, Stony Brook,
New York 11794, United States
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Jiang CW, Zhou X, Xie RH, Li FL, Allen RE. Selective control of vibrational modes with sequential femtosecond-scale laser pulses. Chem Phys Lett 2011. [DOI: 10.1016/j.cplett.2011.09.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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8
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Zhao S, Lu H, Liu P, Li R, Xu Z. Active control scheme and mechanism in the two-pulse molecular alignment. Chem Phys Lett 2011. [DOI: 10.1016/j.cplett.2011.02.049] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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9
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Bryan WA, Calvert CR, King RB, Greenwood JB, Newell WR, Williams ID. Controlled redistribution of vibrational population by few-cycle strong-field laser pulses. Faraday Discuss 2011; 153:343-60; discussion 395-413. [PMID: 22452089 DOI: 10.1039/c1fd00042j] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The use of strong-field (i.e. intensities in excess of 10(13) Wcm(-2)) few-cycle ultrafast (durations of 10 femtoseconds or less) laser pulses to create, manipulate and image vibrational wavepackets is investigated. Quasi-classical modelling of the initial superposition through tunnel ionization, wavepacket modification by nonadiabatically altering the nuclear environment via the transition dipole and the Stark effect, and measuring the control outcome by fragmenting the molecule is detailed. The influence of the laser intensity on strong-field ultrafast wavepacket control is discussed in detail: by modifying the distribution of laser intensities imaged, we show that focal conditions can be created that give preference to this three-pulse technique above processes induced by the pulses alone. An experimental demonstration is presented, and the nuclear dynamics inferred by the quasi-classical model discussed. Finally, we present the results of a systematic investigation of a dual-control pulse scheme, indicating that single vibrational states should be observable with high fidelity, and the populated state defined by varying the arrival time of the two control pulses. The relevance of such strong-field coherent control methods to the manipulation of electron localization and attosecond science is discussed.
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Affiliation(s)
- William A Bryan
- Department of Physics, Swansea University, Swansea, SA2 8PP, UK.
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Liu Y, Gong Q. The long-term evolution of D2+ nuclear wave-packet with interaction of intense femtosecond laser pulse. OPTICS EXPRESS 2009; 17:23629-23636. [PMID: 20052072 DOI: 10.1364/oe.17.023629] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
We investigate the long-term evolution of D2+ nuclear wave-packet after interacting with a 5 fs, 800 nm laser pulse at an intensity of 0.5 x 10(14) W/cm2. The nuclear wave-packet evolves in field-free condition for very long time after the laser pulse. The collapse and revival of nuclear wave-packet is studied. The scale of the classical time (approximately 25 fs), the revival time (approximately 580 fs) and the super-revival time (approximately 12 ps) are determined from the simulation as well as the calculation. The constituents of long-standing nuclear wave-packet are also analyzed.
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Affiliation(s)
- Yunquan Liu
- Department of Physics School and State Key Laboratory for Mesoscopic Physics, Peking University, Beijing 100871, People's Republic of China.
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Wu C, Zeng G, Gao Y, Xu N, Peng LY, Jiang H, Gong Q. Controlling molecular rotational population by wave-packet interference. J Chem Phys 2009; 130:231102. [DOI: 10.1063/1.3155063] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Nuernberger P, Vogt G, Brixner T, Gerber G. Femtosecond quantum control of molecular dynamics in the condensed phase. Phys Chem Chem Phys 2007; 9:2470-97. [PMID: 17508081 DOI: 10.1039/b618760a] [Citation(s) in RCA: 130] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We review the progress in controlling quantum dynamical processes in the condensed phase with femtosecond laser pulses. Due to its high particle density the condensed phase has both high relevance and appeal for chemical synthesis. Thus, in recent years different methods have been developed to manipulate the dynamics of condensed-phase systems by changing one or multiple laser pulse parameters. Single-parameter control is often achieved by variation of the excitation pulse's wavelength, its linear chirp or its temporal subpulse separation in case of pulse sequences. Multiparameter control schemes are more flexible and provide a much larger parameter space for an optimal solution. This is realized in adaptive femtosecond quantum control, in which the optimal solution is iteratively obtained through the combination of an experimental feedback signal and an automated learning algorithm. Several experiments are presented that illustrate the different control concepts and highlight their broad applicability. These fascinating achievements show the continuous progress on the way towards the control of complex quantum reactions in the condensed phase.
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Affiliation(s)
- Patrick Nuernberger
- Universität Würzburg, Physikalisches Institut, Am Hubland, 97074 Würzburg, Germany
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Bhattacharjee† A, Dastidar KR. Control of de-excitation to selected vibrational levels in the ground state of NaH molecule using two broadband ultrashort pulses. Mol Phys 2006. [DOI: 10.1080/00268970600795083] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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15
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Kono H, Sato Y, Kanno M, Nakai K, Kato T. Theoretical Investigations of the Electronic and Nuclear Dynamics of Molecules in Intense Laser Fields: Quantum Mechanical Wave Packet Approaches. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2006. [DOI: 10.1246/bcsj.79.196] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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16
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Wollenhaupt M, Präkelt A, Sarpe-Tudoran C, Liese D, Baumert T. Strong field quantum control by selective population of dressed states. ACTA ACUST UNITED AC 2005. [DOI: 10.1088/1464-4266/7/10/010] [Citation(s) in RCA: 60] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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17
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Zhang GP, George TF. Controlling vibrational excitations in C60 by laser pulse durations. PHYSICAL REVIEW LETTERS 2004; 93:147401. [PMID: 15524839 DOI: 10.1103/physrevlett.93.147401] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2004] [Indexed: 05/24/2023]
Abstract
Two similar off-resonant ultrafast laser experiments in C60 have reported two different vibrational modes that dominate the relaxation process: one predicts the A(g) modes while the other the H(g) modes. A systematical simulation presented here reveals that this experimental discrepancy results from the laser pulse duration. The numerical results show that since each mode nu has a distinctive optimal duration tau(nu)(o), the A(g) modes are strongly suppressed for durations longer than 40 fs, while the H(g) modes start to grow. For the off-resonant and low-intensity excitations, the period Omega(o)(nu) of the dominant mode and tau(nu)(o) satisfy the relation Omega(o)(nu)/tau(nu)(o) approximately 3.4. By carefully scanning the laser frequencies and pulse durations, a comprehensive excitation diagram is constructed, which can be used to guide experiments to selectively excite the A(g) and H(g) modes in C60 by an ultrafast laser. Its potential impact is also discussed.
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Affiliation(s)
- G P Zhang
- Department of Physics, Indiana State University, Terre Haute, Indiana 47809, USA
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Bandrauk AD, Sedik EWS, Matta CF. Effect of absolute laser phase on reaction paths in laser-induced chemical reactions. J Chem Phys 2004; 121:7764-75. [PMID: 15485238 DOI: 10.1063/1.1793931] [Citation(s) in RCA: 62] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Potential surfaces, dipole moments, and polarizabilities are calculated by ab initio methods [unrestricted MP2(full)/6-311++G(2d,2p)] along the reaction paths of the F+CH4 and Cl+CH4 reaction systems. It is found that in general dipole moments and polarizabilities exhibit peaks near the transition state. In the case of X=F these peaks are on the products side and in the case of X=Cl they are on the reactants side indicating an early transition state in the case of fluorine and a late transition state in the case of chlorine. An analysis of the geometric changes along the reaction paths reveals a one-to-one correspondence between the peaks in the electric properties and peaks in the rate of change of certain internal geometric coordinates along the reaction path. Interaction with short infrared intense laser fields pulses leads to the possibility of interferences between the dipole and polarizability laser-molecule interactions as a function of laser phase. The larger dipole moment in the Cl+CH4 reaction can lead to the creation of deep wells (instead of energy barriers) and new strongly bound states in the transition state region. This suggests possible coherent control of the reaction path as a function of the absolute phase of the incident field, by significant modification of the potential surfaces along the reaction path and, in particular, in the transition state region.
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Affiliation(s)
- André D Bandrauk
- Laboratoire de Chimie Theorique, Faculté des Sciences, Université de Sherbrooke, Sherbrooke, Québec J1K 2R1, Canada.
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